* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-size: 14px;
}
@media screen and (max - width: 480px) { 
    #divMain { 
        float: none; 
        width: auto; 
    } 
    #divSidebar { 
        display: none; 
    } 
}
.First{
	background: lightblue;
	height:60px;
}
.First span{
	font-size: 15px;
}
.Music{
	background: lightblue;
	height: 60px;
}
div,ul,li{margin: 0;padding: 0}/*先初始化一下默认样式*/
.Top {
display: flex;
background-color: bisque;
gap: 75px;
}
.denglu a{
	font-size: 20px;
	display: flex;
	gap:5px;
	padding-top:185px;
	list-style: none;
}
.Top1{
	display: flex;
	gap: 75px;
	background-color: bisque;
}
#logo1{
	border-radius:600px ;
}
.Top2{
	display: flex;
	gap:75px;
}
.Top2_1{
	display: flex;
	padding-top:170px;
}

.Top2_2{
	display: flex;
	gap:5px;
	padding-top:185px;
}

.top3 select{
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	padding: 16px;
	border: 6px ;
	background-color: white;
	color: #333;
	font-size: 20px;
	width: 220px;
	border-radius:30px;
}
.top3 option{
	text-align: center;
}
#top5{
	font-size: 25px;
}
